Speaker
Dr
Daniel Castro
(Harvard-Smithsonian Center for Astrophysics)
Description
Supernova remnant (SNR) N132D, located in the Large Magellanic Cloud, represents a unique opportunity for the study of gamma-ray emission from shock-accelerated cosmic rays (CRs) in another galaxy since it stands as the first and only extra-galactic SNR detected in gamma-rays. N132D is one of the brightest SNRs in the local Universe in the X-ray, infrared and radio bands, and it has also been detected in TeV energy gamma-rays. N132D's apparent interaction with a giant molecular cloud strongly favors the scenario where the gamma-ray emission results from CR hadrons interacting with dense ambient media. We report on the detection of N132D with the Fermi-LAT and characterize the emission in the MeV-GeV band. Additionally, we establish an upper-limit on the non-thermal contribution to the X-ray spectrum obtained using Chandra observations. Our results allow us build a very complete picture of the properties of the system and its progenitor, ultimately helping us better understand CR acceleration in SNRs.
Primary author
Dr
Daniel Castro
(Harvard-Smithsonian Center for Astrophysics)
Co-authors
Dr
Elizabeth Hays
(NASA GSFC)
Dr
Fabio Acero
(Laboratoire AIM, CEA-Saclay)
Prof.
John Hughes
(Rutgers University)
Dr
Marianne Lemoine-Goumard
(Université Bordeaux, CNRS/IN2P3)
Dr
Patrick Slane
(Harvard-Smithsonian Center for Astrophysics)
Dr
Paul Plucinsky
(Harvard-Smithsonian Center for Astrophysics)
Dr
Pierrick Martin
(IRAP Université de Toulouse, CNRS)
